Questions about instruments which rely on gyroscopes to function, such as attitude indicators.
Questions tagged [gyroscopic-instruments]
61 questions
6
votes
4 answers
Why does the attitude indicator gyro not precess the same way that a directional gyro does?
The directional gyro needs to be realigned every so often, but the attitude indicator does not, and I have a hard time finding why.
vector
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4
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1 answer
What and when was the first gyroscopic flight instrument introduced?
One of things which consistently amazes me about flight is the exceptional progress in the early decades of flight - especially in terms of avionics. Wikipedia tells me that the first ILS landing was in 1938.
I'd like to understand more about the…
Dan
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3
votes
4 answers
How to detect orientation with accelerometer while vehicle has variable acceleration?
According to my research I saw that, in order to detect the angular orientation AHRS uses gyro and accelerometer. Only gyro does not work well because of integration drift. Only accelerometer also does not work because of vibrations and vehicle…
Mert Celik
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2
votes
2 answers
How does a gyro compass indicate true heading?
From what I've researched, a gyro compass is usually calibrated with with reference to a magnetic compass. Once you've engaged the gimbal locks, and start to rotate the compass to a magnetic heading; will it automatically compensate for true heading…
ApolloMission4
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2
votes
1 answer
How are gyros used on a turn indicator?
So I understand how precession works, and that gimbals are used to isolate the gyro from outside rotation, however when a yawing motion is applied to the gyro, it'll essentially translate to a rolling (horizontal) motion on the gimbal to turn the…
ApolloMission4
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1
vote
2 answers
Gyro Erection System
I have a hard time understanding the physics behind the pneumatic erecting system in an attitude indicator. According to my book and the linked image, the applied force is “precessed 90 degrees” (anti-clockwise seen from above) and thus re-aligns…
psie
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vote
1 answer
Is the pod on the right wing of the PC-12 and Cessna 208 a gyrocompass?
Hello avgeeks,
First time posting here looking for an answer.
Could someone tell me what's located inside that pod on the right wing of some planes like this Pilatus PC12 or this Caravan 208?
I guess it can be a gyrocompass but i am not 100%…
Flightfighter
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1
vote
1 answer
What is the behaviour of attitude indicator with a lower than standard gyro speed?
How does attitude indicator behave if its gyro is spinning at lower revolutions per minute than its designed specification?
AIRWAYLOVER
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1
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1 answer
Sensitivity of the gyroscopic instruments if below or above green arc
What will happen to the gyroscopic instruments (heading indicator and attitude indicator) if the vacuum pressure from the engine driven vacuum pump is too high or too low?
Will the indications be sensitive or less sensitive if below the green arc on…
AerospaceX
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